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dimulka [17.4K]
2 years ago
14

A factory produces a batch of toy vehicles, 1/3 of which are cars and the rest are trucks. trucks have defective ratio of 0.02 a

nd cars have defective ratio of 0.01. the quality inspector picks a toy vehicle at random from the batch and finds out that it is defective. what is the probability that the vehicle was a truck
Mathematics
1 answer:
krek1111 [17]2 years ago
4 0

Answer:

Step-by-step explanation:

b

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A teacher is making a history test composed of the same number of multiple-choice questions as short-answer questions. She estim
olga_2 [115]

Answer:

8 questions each for short answer questions and 8 questions of Multiple Choice Questions type.

A total of 16 questions.

Step-by-step explanation:

Given:

The number of multiple choice questions and number of short answer type questions are same.

Let it be equal to .

Average Time taken to attempt multiple choice question = 2 minutes

Total time taken to attempt multiple choice question = 2 minutes

Average Time taken to attempt short answer type question = 3.5 minutes

Total Time taken to attempt short answer type question = 3.5

Total time for test should be less than 45 minutes.

Therefore, the equation becomes:

Hence, the value of

Therefore, the answer is:

8 questions each for short answer questions and 8 questions of Multiple Choice Questions type.

A total of 16 questions.

3 0
1 year ago
Factor completely 4u^2-28u+49
icang [17]

\bold{Answer}

\boxed{\bold{\left(2u-7\right)^2}}

\bold{Explanation}

  • \bold{Factor: \ 4u^2-28u+49}

\bold{---------------------}

  • \bold{Rewrite \ 4u^2-28u+49: \ \left(2u\right)^2-2\cdot \:2u\cdot \:7+7^2}

\bold{\left(2u\right)^2-2\cdot \:2u\cdot \:7+7^2}

  • \bold{Apply \ Perfect \ Square \ Formula \ \left(a-b\right)^2=a^2-2ab+b^2: \ a=2u,\:b=7}

\bold{\left(2u-7\right)^2}

\boxed{\bold{Eclipsed}}

3 0
3 years ago
Read 2 more answers
Write the first four multiples of each number.<br><br>1. 3 <br>2. 4<br>3. 8 <br>4. 15
Levart [38]

Answer:

3, 6, 9, 12

4, 8, 12, 16

8, 16, 24, 32

15, 30, 45, 60

Step-by-step explanation:

multiply each number by itself

5 0
2 years ago
The number of mosquitoes at the beach has increased by 50% every year since 2012. In 2012, there were 2,500 mosquitoes. How many
xxTIMURxx [149]

Answer:

Step-by-step explanation:

2012 = 2500

2500 x .50 = 1250

2500 + 1250

2013 = 3750

3750 x .50 =

3750 + 1875

2014 = 5625

5625 x .50 = 2812.5

5625 + 2812.5

2015= 8437.5

8437.5 x .50 = 4218.75

8437.5 + 4218.75

2016= 12656.25

12656.25 x .50 = 6328.125

12656.25 + 6328.125

2017= 18984.375

18984.375 x .50 = 9492.1875

18984.375 + 9492.1875

2018= 28,476.5625‬

3 0
3 years ago
38b/-19<br><br> please help me
Natasha2012 [34]
You didn't write what to do with the fraction but I think you meant to ask to simplify it:
38b/-19
Multiply - 19 from top and bottom :
-2b
7 0
3 years ago
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